Machine for making perfected window-envelop blanks.



W. HI BNZETT.

MACHINE FOR MAKING PERFECTED WINDOW ENVELOP BLANKS.

APPLICATION FILED FEB. I5` I9I.

1,289,084. Patented Dec. 31, 1918.l

3 SHEETS-SHEET l.

Patented Dec. 81, w18.

3 SHEETS-SHEET 2.

MACHINE FOR MAKING PERFECTED WINDOW ENVELOPBLANKS.

APPLICATION FILED FEB. I5. IsIs.

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APPLICATION FILED FEB. I5` I9I6.

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WILLIAM I-I. BANZETT, OF BERGENFIELD, NEW JERSEY, ASSIGNOR TO `MERAN'III'EE CORPORATION, OF DAYTON, OHIO, A CORPORATION OF NEW YORK.

MACHINE FOR MAKING PERFECTED WINDOW-ENVELOP BLANKS.

Application led February 15, 1916. Serial No. 78,377.

To all whom'z't may concern:

Be it known that I, WILLIAM H. BaNzETT, a citizen of the United States, residing at Bergeneld, in the county of Bergen and State ot New Jersey, have invented certain new and useful Improvements in Machines for Making Pertected Window-Envelop Blanks, of which the following is a full, clear, and exact description.

This invention relates to certain improvement-s in machine-s tor making window envelop blanks. This machine is of the type shown and claimed generically in my Patent No. 1,201,430, issued Oct. 17, 1916. lIn my improved machine, means are providedifor embossing a stamp such as used in Government stamped envelops, imprinting a corner card, cutting a window and thereafter severing the web into rhomb shaped blanks. The whole operation is rotary and continuons, thus permitting speed and cheapness of operation. In the machine, which is the subject matter of this application, certain cutter improvements are embodied. The improved cutters permit an adjustment and setting of the cutters as will be more fully pointed out here-after.

In the drawingsl Figure 1 shows an assembly view of the complete machine.

Fig. 2 shows av diagrammatic view illustrating the several steps inmaking an envelop blank in my improved machine.

Fig. 3 is an assembly viewot the cutters used for making the side and mid cuts.

Fig. 4t is a central sectional view of the same cutters.

Fig. 5 is a top plan view ot' the cutters in Fig. 3.

Fig. 6 is a detail view of the cutters. shown in Fig. 3. which are used for making the mid cuts.

Fig. 7 is a detail sectional -view ot the mid cutter showing the details of the adjusting devices.

i Fig. 8 is a plan l-lview ot the window cutter. l

Fig. 9 is a section view of the window cutter taken on line 9-9 of Fig. 8 and looking in the direction ot the arrow.

Fig. 10 is a top plan view ot one ot the side cutters.

Fig. 11 is a perspective view. of one ot the cuttersused for making the transverse cuts in the web between the side and the mid cuts.

Fig. 12 is a detail sectional view of the cutter shown on Fig. 11,'taken on line 12 and looking in the direct-ion of the arrow.

Fig. 13 is an end view lof the rolls and the cutters carried thereby as shown inperspective in Fig. l1.

Fig. 14 is a detail view of the corner card printing roll and the skewed type slug carried thereby. Y y

The sequence of operation may be easily traced by referring to the diagrammatic view shown in Fig. 2. The web 20. as it advances, first has imprinted thereon printed legends to form a corner card at I. Thereafter, at the next step, a stamp is embossed and printed upon the web as shown at II.

The web then passes through the window cutter which cuts a window aperture in the web at III. The corner card type lines', the stamp and the-window are all atan angle to the side of the web and arel parallel to the major axis line of the blank. The blank is in the shape of a parallelogram ot rhornb shape having sides parallel with the path of the web from which it is formed. The steps for fprming this blank will now be explained. Side cuts, as shown at IV, are first made in the web. Thereafter. at the next station, mid cuts V and deep side cuts VI are made. At the next station, transverse cuts VII are made. these cuts extend diagonally and connect the deep side cuts VI and the mid cut V. complete and by means of speeding up rolls, is separated from the web as shown at VIII. The blank then advances to blank receiving and delivery mechanism. The blank thus formed is produced in the most economical manner.- from a ,webj'ot paper. and paper waste is reduced to a minimum.

The machine for carrving out thc above steps will now be explained.

The paper web 20, passes from supply roll 21, under an idlcrlroll. The web passes directly upwardly between the impression platen 22 and the corner card printing roll 23. This roll carries printing plates 24 `which are arranged in skewed relation on roll 23 as shown in Fig. 14. The plates are inked by the inking rolls D, which are adapt- The blank is now' l ed to take ink from y line-ofl the stamp,

jgni'reans of a ductor roll ing device embosses and the ink fountain by operating in the well known manner. In order to lift the type from the web when the machine. is stationary, tliink rolls and the type carrying rolls aremounted upon a frame 25, which frame is pivoted to the machine frame and which is adapted to be swung back by means of the handle and eccentric device shown at 26. The above instrun'ientalitis are adapted. to

rint the printed legends l"on the web which orm corner cards as shown at I in Fig. 2.

Sto/imp embossing.. i

Suitably jouinaled on the machine frame is a printing and embossing cylinder 27 carrying four embossing d1e s 23 whlch are adapted to coact with matrix dies 29 on c ylinder 30. The dies 28 are adaptedto receive ink from inking rolls D2 taking ink from a fountain by means of the usual ductor roll D3. The ink rolls and fountain are mounted upon a pivoted frame which can be lifted by the eccentric device 3l'. The sta-mp embossprints a stamp on the web as shown at II, Fig. 2. The readingr is embossed and printed upon the web in parallelism with the reading lin'e of the printed legends forming the corner card at I. After stamp embossing device, the web passes between feeding rolls 32 and 33 the latter roll being pring pressed into engagement with l roll 32.

Window cutting cle/vice.

Tocut the window, shown at III, in the web,the web is passed between a window cutter roll 34, carrying two window cutters thereon, as shown in Fig. 8. The details of these cutters will be described in detail later. lCoacting with the cutters is a die roll 35 whichdie roll carries pins at 36, which remove the window chips from the cutter. Strippers, as 37, strip the chips from the pins and allow them to fall upon a conveyer belt 38 which carries them to a suitable box i at kthe side of the machine.

Side cutting (Ic/vices.

i To make the side cuts IV, the web passes between cutter roll 39,l which carries knife cutters `40, secured 'to flattened spots 41 on from which they through pipe 43. It will be understood that there are two cutter vknives Jc() on the same roll 39. These knives are mounted upon the opposite ends of the roll and angularlydis- -rolls 51 which speed passing through the' y taut and 1n tension at posed with respect to each other in order to cut the side cuts at opposite sides of the web as shown at IV in Fig. 2.

Aft-er leaving rolls 39 and 42 the web passes between web feeding rolls 44 and 45, the lat-ter being spring pressed into contact with the web neath.

lllz'd and sdc cutter device.

To cut the mid cuts V and the side cuts VI the web passes between a cutter head shown at 46 which carries a plurality of cutters which coact with die roll 47 having chip removing pins and stripper blades. There is one pin for each side cutter and one for the mid cutter as shown in Fig. 3. The chips fall into a box and are removed by suction through a branch pipe leading to pipe 43. The cutter head will be more fully described hereafter.

eaving the cutter, which makes the cuts V and VI, the transverse cuts VII are made by cutter 48 coacting with die roll 49. Thereafter the blank passes between feeding up the blank slightly succeeding blanks as 2. AfterAt-he blanks to space it from the shown at VIII in Fig. leave thespeeding up rolls, they are delivered to the right and left into storage troughs by means of vibrating blades 53 which are rocked by a link connected to some operating part of the machine, as a crank pin on the gear driving the cutter head 46.

Gea/ring train.

All of the cutter rolls, die rolls, feeding rolls, embossing and printer rolls are gea-red together by gearing shown by dotted circles in Fig. 1. These gears need not be mentioned in detail. It is sufficient testate that power is received from a-driving pulley atA 56 and that the intermediate gearing drives all the parts in unison and in this way the printing,-cutting, and e'ipossing are properly spaced and cordinated on theweb.

The Web feeding rolls 33 and 32, 44 and 45, 54, 55 are adapted to maintain the web all points in the machine. f

MM and szdc cutter.

The details of the cutter Vwhich makes cuts V and VI, will be first described', as certain of its principles and construction is similar to the other. cutters.

In Fig. 3, 7/0 is a shaft which journaled in the carries on one end a driving gear. The shaft is prevented from endwise movement in the frame by suitable collars. vStrung on the shaft are a number of cutter` bodies. There are three of these bodies, z'. e. 71, 72 and The center body 7 2. carries the cutters which make the mid cuts V, and the outer bodies 7l lis suitably and the coperating roll be- 1 and 7 3 carry the cutters Which make the side 130 web, as shown at -cuts VI. Each of the cutter bodies are slotted as shown at 74 in Fig. 4 and provided with clamping means as 75, whereby the cutter body may be clamped to the arbor 70 after it is properly positioned thereon. It will be understood that each cutter body is similarly slotted and similarly clamped.

In making cuts at different parts of the V and VI, in Fig. 2, it is important that the cuts be accurately placed, otherwise the finished blank will 4be defective. I accordingly provide means for angularly shifting each off-the bodies 71, 72 or 73 around the carrying shaft 70, forward or back, relative to each other. This adjustment means is shown for the center body 72 only, but a similar adjustment is provided for the bodies 71 and 73. Referring to Fig. 4, two adjusting screws 76 and 77 are threaded into the cutter bodies and are adapted at their inner ends to abut against fiat spots on the shaft 7 0. Vhen it is 'desired toI adjust the bodies an'gularly with respect to one or both of the other cutter bodies, the clamping means 75 is loosened. Thereafter one adjusting screw, for example 76, is loosened and the other, say 77, is tightened. In this way the cutter body can be very accurately adjusted on the shaft. When the adjustment is correct, the clamping means 75 is again tightened and the body will then remain in l .space the cutter bodies the proper angular relation to the carrying shaft. I also find it desirable to adjust the lateral position of the cutter bodies on the shaft 70. This is done by threading portions of the shaft and providing clamping nut-s 78 'and 79 which are adapted to be tightened against cutter bodies 71 and 7.3 respectively.

yBy'loosening one nut and tightening the.

other, the cutter bodies may be set to any desired position on the shaft. If desired to farther' apart, paper or fiber shims may be placedbetween 71 and 72 and between 72 and 73. It will be understood that although three blocks or bodies are shown that any number of these bodies may be mounted upon the carrying shaft.

(flutter blades md supporti/ng stratum/re.

The cutter body 72. has a flat face 80 and a tapered face 80a. (Inthe present embodiment there are two of these faces, one flat and the other tapered, but there may be one or more-of such flattened faces or one or more of the tapered faces depending upon the, diameter of the cutter body and the gear ratio of the driving gear.) The fiattened face 80 and the baseline of tapered face 80a are parallel to each other and ncrmalto a vertical line passing through the center of shaft 7 0.

The flattened face 80 is provided with a plurality of cupped depressions to receive springs 81. These springs press outwardly upon the bottom of a subbase plate 82,

outward movement which is imparted thereto by the springs 81. Locking set screws 85 are provided to lock the limiting screws in position after they `are once adjusted.

At the top of Fig. 7, a modified construction is shown. In ltqli'is modification the face of the cutter block is tapered at Interposed between the subbase plate 82 and the tapered face 80a of thecutter block is a wedge 86 having a lower taper to correspond with taper 80a. The same cheek plates 83 are provided to bear-against the sides of the subbase plate 82. Similar limiting screws 84 and locking set screws 87 are employed at each side of the wedge plate to adjust thel base plate to and from the cutter base block. Y

It will be understood that the wedge ar-.Vl

rangement or the spring arrangement for forcing the subbasel plate outwardly in this machine are modifications. Either Iconstruction may be used.

The-knives carried vby thel subbase plates 82 both top and bottom are alike. The contour of the two parts 88 and 89 are shown in Figs. 4, 6 and 7. vThe knives have a fiat base to seat on the base plate and are firmly secured thereto by screws. The shape of each knife is determined by the shape 'of the cut to be made and by referring to Figs. 4 and 6 it will be seen that each knife, has an outwardly tapering portion 90 which tapers from the periphery to the base of the knife The -knives for making the side cuts VI are similarlymoun'ted upon base plates and the vbase plates are Lmounted in the same manner as heretofore described, e. leither by wedges or with the sp1-ing backing. The

knives themselves z'. c. 92, 93 and 94, 95 are in two parts andare' constructed in a similar manner to knives 88 and 89. They have one tapered and= oneperpendicular edge. The

purpose -of this construction will be hereafter pointed out.l

The relativearrangement of the knives carried on cutter heads 71, 72 and 73 can be seen by referring to- Fig. 5 which shows that the cutter blocks are spirally disposed about the arbor 70. The disposition of the cutter base blocks is such that on rotating, the cutters will make the cuts V and VI in a diagonal transverse line in the web as shown in Fig. 2. This Fig. 5 also points out the desirability of adjusting the cutter base blocks by the adjusting screws 76 and 77, see Fig. Ll. This adjustment is of course necessary to set the knives so that theyare alinedwitha spiral. A

Die roll.'

Coacting with the knives is a. hardened die roll 47, this roll being mounted upon an arbor 101 which arbor blocks 102 and which carries at one end a driving gear which intermeshes with the driving gear on the cutter shaft. The die pressure of course would damage the knives.

f A similar spring bearing and adjustment is provided for each of the die rolls 35, 4 2, and 49 shown in Fig. 1.

Knife @pera-tion.

In operating the machine the die rolls are adjusted so that they just about Contact with the tips of the blades. The paper web on passing between the knives and die roll will be cut, but the knives and die roll will be uninjured since they are held from actual damaging contact by the adjusting devices 104. The spring pressed rolls also permit heavy or excessively thick or patched 4sections of web to pass through the machinewithout breakag When the knives wear or become nicked it is necessary that they be sharpened. This is done b v releasing the limiting screws 84, after w'hich thc springs 81 are effective to throw the subbase plates outwardly. Or if the wedge construction is used the wedge is set up to force the subbase plate 82 outwardly. The tips of the knives are then ground down by a suitable grinder until the diameter of the groundl portion is reduced to the original diameterv before the limiting screws were released. The tapered surfaces 90 of the knives are then whetfted to bring the cutting edge to aline. It will be understood that after the limiting screws 84 have is mounted in bearing the tapered side of the been moved to permit the subbase plate to come out they will be locked by set screws 85. By reason of the perpendicular face 91 of the knives their shape is maintained even Severng (futter.

The cutter which makes thel transverse lsevering cut is shown in Figs. 11, 12 and 13. The cylinder 48 is slotted as shown in Fig. 11. The base of thisslot is shown at 110 and the Sides of the slot at 111, and 112. The cylinder is also slotted on its opposite side as shown by the dotted base line 113, in Fig. 13. The bottoms of these slots have depressions in which a number of springs 114 are placed. The springs force out-- wardly against the bottom of a knife carrying cage 115 which cage has side port-ions 116 and 117 to coact with the sides 111 and 112. Limiting screws 118 are utilized to limit the extreme outward movement of the cage. The knife 119 is provided with bearing blocks 120 at each end and with a ta-A pered face 121. Wedge blocks 122 coact with knife and are fastened byv means of screws to the bottom of the cage. This knife therefore may be given .two adjustments-one by 4loosening the limiting screws 118 and thus permitting the cage to come out prior to sharpening t-he edge of the knife. The other adjustment is made by loosening the wedge block 122 and packing up between the bearing blocks 120 and side 117 ofthe knife cage. This adjustment permits the knife to be slightly twisted to bring the ends inte proper alinement with the previously made cuts V and VI in the web. It will be understood that the parts shown in Fig. 11 are duplicated on the rearv side of roll 48 as will appear from Fig. 13 which shows two knives 119 angularly displaced with respect to each other. A j

In order to prevent the knife 119 from shifting endwise in the cage when the wedge blocks 122 are released, dowel pins 123 are Iplaced in the base of the cage at each end of the knife.

It will be understood that the adjustment for twisting the knife by placing shims between bearing blocks 120 and side 117 of the cage is a close adjustment and that if a v slightly below the periphery of roll 48. 10 l I am aware that it is old to mount a severing knife with spring backing and that such knives have been twisted for adjustment and I do not claim these features broadly but merely the specilic embodiment here shown and described.'

The adjustments of the cutter which cuts "lthe side cuts IV is made by packing up be' f' shaped knives tween the lower face of the base of the knife 40 and the flat face 41 -of cutter roll 39. The knife has a tapered face 90 anda perpendicular face 91 similar to the other knives.

Window cutter.

Cylinder 34 carries two diametrically opposite window cutters which make the windows III. These cutters comprise two U- upon oblique iat facesupon the cylinder. These faces are made' by making two mill cuts inthe cylinder. The direction of 'these/ cuts is oblique to the axis of the cylinder and the bases 132 and 133 of the `cuts are both normal to a plane which intersects the median line of the cutter. This plane is indicated by the dotte'd line in Fig. 9. Each knife 130 and 131 has a flat base 134 which seats against the I'lat face of the cuts and are secured thereto byscrews. Each knife has a tapered inner edge 136 and a straight outer edge 137 which is perpendicular to the base 132 or 133. `Knife 130 also has 'an extending 130 and 131 which are' seated I claim:

1. In an envelop blank machine; in combination; with means for continuously adyancing a web of paper; means for cutting 1n said web a plurality of window apertures, having the major sides of the window g: in parallelism with the major axis of a to be formed blank, said axis being disposed at an angle to the side of the web; coacting rotary means for cutting side cuts in the web; coacting rotary means for cutting diagonally disposed side and mid cuts in the web; coacting rotary means for diagonally severing the web between the side and mid cuts and thereby forming a completed rhomb shaped window envelop blank; and means for adjusting and cordinating the operaportion 138 which. has a straight inner face which registers with the straight face of the other knife andan outwardly tapered face.

The portion 138extends past .the end of the knife 131 as will be clearly seen in Fig. 8. Knife 131 has a similarly extending part 139 which extends past the end of the knife 130. By reason of these extending portions 138 and 139, it is possible to place shims under the knife bases when it is'- desired to sharpen the knives. When the knives are so raised, there'is a telescoping action between the two U-shaped knives, and the eX- tensions permit this telescoping action without a separation between the ends of the knives.

It will be understood that my invention is not limited to the precise form and construction described and shown, but is susceptible to various modications which would be devised by those skilled in the art.

What I claim as my invention" isl more particularly pointed out in the appended claims.

thereon; knives on said bodies,

tions of said cutter means whereby the cuts are properly registered one with the other uponthe moving web. 1,

2. In a machine of the class described, in combination; meansfor' continuously advancing a web of a paper; coacting rotary means for cutting side cuts in the web; a cutter having a plurality of independently mounted cutters thereon, means for varying the angular relation of said cutters with respect to each other, whereby adjustments in the location of the cuts in the web, made by thesaid cutters, may be made, and coacting rotary cutter means for severing the said web with diagonal cuts whereby the web is formed into rhomb shaped blanks having their major axis at an angle to the side of the web.

3. In a machine of the class described, in combination, means for continuously advancing' a web of paper; coacting rotary means for cutting in the said web a plurality of Window apertures, a cutter arbor; a plurality of independent cutter bodies spirally disposed with respect to each other, a die roll coperating with said knives whereby upon rotation of the knives and die roll a plurality of diagonally disposed cuts are made in moving web, and means for adjusting the angular relation of the cutter bodies on the j arbor whereby the position of the cuts in theweb may be varied. 4. In a machine of the class described, in combination, a means for continually feeding a web of paper; an arbor adjacent said web; a plurality of cutter bodies on said arbor, independentl adjusting means for said cutter bodies whereby they may be given a relative angular adjustment with respect to each other and to the said arbor, a plurality of knives on said cutter bodies said knives being spirally disposed to each other and a die roll for'coperating with the knives andk making diagonally disposed cuts in the web. 5. In a device of the class described, in combination, a cutter head having a plurality of -flat faces thereon, cheek plates securedto the said cutter head, subbase plates guided between said cheek plates, springs intermediate the cutter-head and the subbase plates adapted to force the subbase plate outwardly, limiting screws to limit the aforesaid youtward movement and knives rigidly secured to'the subbase plate, said knives having their periphery 4at all points equidistant from the axis of the cutterhead. l

6. In a device of the class described, in combination, a cutter head having a plurality of independent cutter bodies thereon, each of said bodies having flat faces, cheek g plates at the sides of the said flat faces subase plates between the saidcheek plates, means for forcing the subbase plates, outwardly, limiting screws to limit the afore-V said outward movement; knives rigidly carplurality of cheek plates secured to said cutter bodies, a plurality of subbase lates guided between the aforesaid cheek p ates, means forforcing the subbase plates outy wardly, a plurality of knives rigidly mounted on each of the subbase plates said knives having all points of their periphery equidista-nt from the axis of the cutter head' and means for shifting the cutter bodies relatively 'to one anotherwhereby the posltlon n head may be.

the cutter head.

8. In a machine of the class described, in

combination, a rotary cutter head having a body portion which is provided with a plurality of faces upon which the cutting elements are to be supported a pluralit of cheek plates extending from the body o the cutter, subbase plates guided between the aforesaid cheek `plates, means for forcing the subbase plate outwardly,'limiting screws to limit the outward movement of the said subbase plates, knives rigidly secured to the subbase plates having their cutting periphery at all points equidistant from the axis of the cutter head, and a rotary die -roll to coperate with the aforesaid knives whereby a paper web passing therebetween is cut.

.9. In a machlne of the class described, comprising in combination means for continuously advancing a web of paper, means for cutting in said web a plurality of apertures skewed relatively to. the longitudinal dimension of the web; means for severing the web atan angle between the apertures and thereby forming a plurality of rhomb shaped envelop blanks; and means for adjusting and for coordinating the operation of the said feeding, a erture eutting, and

severing devices where y the apertures arey properly spaced in the blanks.

In testimony whereof I aflix my signature in the presence of two subscrlbing witnesses.

WILLIAM H. BANZETT.

`Witnesses:

FELIX THoMAs, THOMAS J. BYRNE. 

